CN211770798U - Hospital sewage treatment process system - Google Patents
Hospital sewage treatment process system Download PDFInfo
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- CN211770798U CN211770798U CN201921304200.0U CN201921304200U CN211770798U CN 211770798 U CN211770798 U CN 211770798U CN 201921304200 U CN201921304200 U CN 201921304200U CN 211770798 U CN211770798 U CN 211770798U
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- 239000010865 sewage Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000008569 process Effects 0.000 title claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 230000020477 pH reduction Effects 0.000 claims abstract description 20
- 239000010802 sludge Substances 0.000 claims abstract description 18
- 230000007062 hydrolysis Effects 0.000 claims abstract description 12
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 12
- 230000003647 oxidation Effects 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 11
- 241000894006 Bacteria Species 0.000 claims abstract description 10
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 10
- 230000008719 thickening Effects 0.000 claims abstract description 10
- 241000233866 Fungi Species 0.000 claims abstract description 7
- 241001148470 aerobic bacillus Species 0.000 claims abstract description 5
- 241000195493 Cryptophyta Species 0.000 claims abstract description 4
- 241001148471 unidentified anaerobic bacterium Species 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims description 19
- 238000005273 aeration Methods 0.000 claims description 18
- 239000006228 supernatant Substances 0.000 claims description 11
- 239000012510 hollow fiber Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims description 7
- 238000005276 aerator Methods 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 239000005416 organic matter Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 230000036541 health Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 244000052616 bacterial pathogen Species 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 241000700605 Viruses Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
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- 229920002521 macromolecule Polymers 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
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- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
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- 208000035473 Communicable disease Diseases 0.000 description 1
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- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
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- 150000007524 organic acids Chemical class 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
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- 239000003403 water pollutant Substances 0.000 description 1
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Abstract
The utility model discloses a hospital sewage treatment process systems, including the hydrolytic acidification pond, the bottom in hydrolytic acidification pond is provided with row mud pipeline, the grid well is connected through first elevator pump and is synthesized the equalizing basin, synthesize the equalizing basin and pass through the second elevator pump and connect the hydrolytic acidification pond, the hydrolytic acidification pond is connected with sludge thickening pond and contact oxidation pond respectively, the beneficial effects of the utility model are that: the sewage after pretreatment in the hydrolysis acidification tank enters a contact oxidation tank, and is treated by utilizing a biological membrane, wherein the biological membrane is an ecological system consisting of highly dense aerobic bacteria, anaerobic bacteria, facultative bacteria, fungi, protozoa, algae and the like. Firstly, the biomembrane adsorbs organic matters in the water layer, aerobic bacteria are utilized to decompose the organic matters, then the organic matters enter the anaerobic layer for anaerobic decomposition, meanwhile, the flowing water can wash away the aged biomembrane to grow new biomembranes, and the aim of purifying water quality can be achieved by circulating the steps.
Description
Technical Field
The utility model relates to a sewage treatment technical field specifically is a hospital sewage treatment system.
Background
Along with the increasing of economic development speed in recent years in China, the material living conditions and medical conditions of people are improved continuously, people pay more attention to their health, the hospitalization frequency and the medical needs are increased, and the generation amount of hospital sewage is increased continuously. The hospital sewage mainly comprises two parts, namely medical wastewater generated during operation of each department and domestic sewage of the hospital, wherein the main pollutants are organic pollutants, pathogenic microorganisms and viruses. The sewage contains a large amount of pathogenic bacteria, has potential disease infection risks, is likely to cause various infectious diseases and epidemic diseases, and part of the pathogenic bacteria have certain resistance to the surrounding environment, can survive for a long time in the sewage and have great health and environmental threats. Some sewage may also contain radioactive substances, which can directly harm human health if not treated.
At present, a common hospital mostly adopts a method of mechanical grating and chemical treatment to treat sewage, although the process flow is simple and the investment is low, the cost of the chemical agent is high, macromolecular organic matters in the sewage cannot be effectively removed, meanwhile, the use of a large amount of chemical agents has adverse effects on the health of operators, a large amount of sludge containing pathogenic microorganisms and viruses is generated, and secondary pollution to the environment is easily caused. Some hospitals adopt the biological aerated filter to treat sewage, although the operation effect is better, the single treatment mode is difficult to remove the difficultly biodegradable pollutants in water, the later maintenance and replacement cost of the filter material is high, the operation management cost is high, and great difficulty is brought to the operation management of the hospitals.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a medicament use amount is few, and mud production volume is few, the running cost is low, water quality and water yield impact load, the hospital sewage treatment system and the method of effective degradation organic matter to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hospital sewage treatment process system, includes the grid well, synthesizes equalizing basin, hydrolysis-acidification pond, contact oxidation pond, sedimentation tank, disinfection pond and marshall groove and according to description order fixed connection in proper order, hydrolysis-acidification pond still is connected with sludge thickening pond, sludge thickening pond's blowdown export sets up folds the spiral shell machine, sludge thickening pond still backflow connection synthesizes the equalizing basin, the sedimentation tank passes through sludge reflux pump backflow connection hydrolysis-acidification pond, the grid well specifically is the thin grid of rotation and is supporting to have corresponding grid sediment screw conveyer, hydrolysis-acidification pond's bottom is provided with row mud pipeline, the grid well is connected through first elevator pump and is synthesized the equalizing basin, synthesize the equalizing basin and connect hydrolysis-acidification pond through the second elevator pump, the disinfection pond sets up the marshall groove.
Preferably, the hydrolysis-acidification tank is a cylindrical tank body, the top of the hydrolysis-acidification tank is provided with a cover plate, the top of the cover plate is welded with a portal frame, a stirrer is fixedly mounted on the portal frame, a reaction zone partition plate is arranged in the hydrolysis-acidification tank, a water outlet bell mouth is arranged on the reaction zone partition plate, a supernatant return pipe inlet is formed in the center of the bell mouth, the supernatant return pipe inlet is communicated with a return pipe outlet through a supernatant return pipe, a water outlet overflow weir is arranged at the opening of the hydrolysis-acidification tank, the bottom of the hydrolysis-acidification tank is of a mud bucket structure, a biological filler is arranged below the water outlet overflow weir, and the biological filler is arranged at intervals of a hollow fiber membrane and an elastic filler.
Preferably, the biological filler is arranged by adopting a hollow fiber membrane and an elastic filler at intervals, the outer diameter of a single membrane wire of the fiber membrane is 4.0-4.4 mm, and the surface of the fiber membrane is provided with holes.
Preferably, the pore diameter of the pore is 0.1-0.2 micron, and the membrane filaments are bundled into membrane bundles every 50-100 units.
Preferably, the outer diameter of the membrane bundle is 20 mm at the minimum, the maximum outer diameter is 100 mm, and the specific surface area is 12000m2/g。
Preferably, an aeration unit and a filling unit are arranged in the contact oxidation pond.
Preferably, the aeration unit adopts a mode of combining a jet aerator and a microporous aeration disc for aeration, the angular points on the periphery of the bottom of the tank body are respectively provided with one jet aerator, and then aeration pipelines are uniformly distributed in the center of the bottom of the tank body.
Preferably, the distance between the axes of the pipelines is 500mm, and the distance between the axes of the aeration discs is 600 mm.
Preferably, a biological membrane is arranged in the contact oxidation pond, and the biological membrane is an ecological system consisting of highly dense aerobic bacteria, anaerobic bacteria, facultative bacteria, fungi, protozoa and algae.
Compared with the prior art, the beneficial effects of the utility model are that:
1. hydrolysis-acidification pool adopts the form of combined type hydrolysis reactor, and the reactor upper strata is the packing layer, adopts purpose-made polyamide class material elastic filler, has unblock, and the material is longe-lived, the advantage of non-adhesion conglobation, and its surface area is big simultaneously, the biofilm formation is rapid, has shortened system debugging time.
2. Hydrolysis-acidification pool is provided with the mixer, during the stirring, there is partial mud in the suspended state bottom, and with the waste water intensive mixing that gets into, improve water quality treatment effect. The suspended sludge can play a strong flocculation role, so that impurities in water are rapidly settled, and complex macromolecular organic matters are decomposed into simple micromolecular organic matters through hydrolytic bacteria in the pool; meanwhile, the method has higher removal rate on COD and SS of the sewage, reduces the difficulty of subsequent aerobic biochemical treatment and reduces the yield of sludge.
3. The hydrolysis acidification tank of the utility model adopts the hollow fiber membrane filler arrangement of mechanical stirring, baffling mixing and installation as the material of the microorganism carrier; the filler combination mode has the advantages of large microorganism attachment quantity and wide microorganism movement range, so that the unit volume digestion pollutant amount is large, the impact load resistance is strong, the influence of water quality fluctuation on the treatment effect is small, the sewage retention time is correspondingly reduced, and the treatment effect is improved.
4. The utility model discloses a biofilm system, by the ecosystem that highly intensive good oxygen fungus, anaerobism, facultative bacteria, fungi, protozoa and alga etc. are constituteed, through the organic matter in biomembrane absorption water layer, utilize good oxygen fungus to decompose the organic matter, later reentrant anaerobism layer carries out the anaerobism and decomposes, and the running water can wash ageing biomembrane to grow out new biomembrane, so circulate, strengthened and purified quality of water.
5. Have suspension mud and the bacterium of hydrolysising after cultivateing in the hydrolytic acidification pond, suspension mud can effectively hold back, flocculation with the suspended solid in the sewage, improves quality of water purifying effect, and the bacterium of hydrolysising simultaneously can make complicated macromolecule organic matter decompose into simple micromolecular organic acid.
Drawings
FIG. 1 is a flow chart of the system of the present invention;
fig. 2 is the structure schematic diagram of the hydrolysis acidification tank of the utility model.
In the figure: 1 portal frame, 2 apron, 3 play water overflow weir, 4 biofilm carrier, 5 play water horn mouths, 6 reaction zone baffles, 7 baggers, 8 mixers, 9 supernatant liquid back flow, 10 back flow export, 11 supernatant liquid back flow import.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a hospital sewage treatment process system, includes the grid well, synthesizes equalizing basin, hydrolysis-acidification pond, contact oxidation pond, sedimentation tank, disinfection pond and marshall groove and according to description order fixed connection in proper order, hydrolysis-acidification pond still is connected with sludge thickening pond, sludge thickening pond's blowdown export sets up folds the spiral shell machine, sludge thickening pond still backflow connection synthesizes the equalizing basin, the sedimentation tank passes through sludge reflux pump backflow connection hydrolysis-acidification pond, the grid well specifically is the thin grid of rotation and is supporting to have corresponding grid sediment screw conveyer, hydrolysis-acidification pond's bottom is provided with row mud pipeline, the grid well is connected through first elevator pump and is synthesized the equalizing basin, synthesize the equalizing basin and connect hydrolysis-acidification pond through the second elevator pump, the disinfection pond sets up the marshall groove.
It is worth noting that the hydrolysis-acidification tank is a cylindrical tank body, the top of the hydrolysis-acidification tank is provided with a cover plate 2, the top of the cover plate 2 is welded with a portal frame 1, a stirrer 8 is fixedly mounted on the portal frame 1, a reaction zone partition plate 6 is arranged inside the hydrolysis-acidification tank, a water outlet bell mouth 5 is arranged on the reaction zone partition plate 6, a supernatant return pipe inlet 11 is arranged at the center of the bell mouth 5, the supernatant return pipe inlet 11 is communicated with a return pipe outlet 10 through a supernatant return pipe 9, a water outlet overflow weir 3 is arranged at the opening of the hydrolysis-acidification tank, the bottom of the hydrolysis-acidification tank is of a mud bucket 7 structure, a biological filler 4 is arranged below the water outlet overflow weir 3, and the biological filler 4 is arranged by adopting a hollow fiber membrane and an elastic filler at intervals.
It is worth noting that the hydrolysis acidification tank specifically adopts a combined arrangement mode of mechanical stirring, baffling mixing and hollow fiber membrane packing, the biological packing 4 is arranged on the upper layer of the reactor, the biological packing 4 carries out hydraulic cutting on flowing wastewater, so that suspended sludge and water are fully mixed, and favorable conditions are provided for the growth of hydrolysis acidification bacteria.
It is worth noting that thereby, include a plurality of evenly distributed's apopore on the inlet tube of hydrolysis acidification pond and form the water-distribution piping system, can be so that bottom part mud is in the suspended state to with the waste water intensive mixing that gets into, improve water quality treatment effect, suspended sludge can play stronger flocculation, makes the impurity of aquatic subside fast, and the bacterium of hydrolysising through in the pond decomposes complicated macromolecule organic matter into simple micromolecule organic matter.
It is noted thatThe biological filler 4 is arranged by adopting a hollow fiber membrane and an elastic filler at intervals, the outer diameter of a single membrane wire of the fiber membrane is 4.0-4.4 mm, the surface of the single membrane wire is provided with holes, the aperture of each hole is 0.1-0.2 micron, the membrane wires are bundled into a membrane bundle every 50-100 units, the minimum outer diameter of the membrane bundle is 20 mm, the maximum outer diameter of the membrane bundle is 100 mm, and the specific surface area of the membrane bundle is 12000m2/g。
It is worth noting that an aeration unit and a filler unit are arranged in the contact oxidation tank, the aeration unit adopts a mode of combined aeration of a jet aerator and a microporous aeration disc, the angular points on the periphery of the bottom of the tank body are respectively provided with one jet aerator, then aeration pipelines are uniformly arranged in the center of the bottom of the tank body, the distance between the axes of the pipelines is 500mm, and the distance between the axes of the aeration discs is 600 mm.
It is noted that the contact oxidation pond is provided with a biological membrane, and the biological membrane is an ecological system consisting of highly dense aerobic bacteria, anaerobic bacteria, facultative bacteria, fungi, protozoa, algae and the like.
The utility model discloses a complete equipment of PLC control adopts full automatic operation mode, automatic processing, automatic measurement, automatic reagent feeding, and its purpose is simplified the operation management of sewage station, alleviates personnel's operation burden.
The implementation effect is as follows:
a chemical dosing disinfection method is used before a certain hospital, and pollutants such as germs and the like in water are eliminated by adding sodium hypochlorite into sewage. After treatment, the COD in the sewage is 180-220mg/L, BOD is 60-90mg/L, and the sewage is difficult to reach the pretreatment standard in the discharge standard of water pollutants for medical institutions GB 18466-2005 table 2. And the content of residual chlorine in the treated sewage reaches 9.8mg/L at most, namely the content of residual chlorine is about to exceed a discharge warning line. The use cost of the agent is high, the secondary pollution of residual chlorine is easily caused, and the harm to the discharged water body is high.
Adopt the utility model discloses the processing system method reforms transform the back, after 1 month at system steady operation, the monitoring result shows that it is up to standard to go out the water effect lasting stabilization, and COD can be stabilized about 90mg/L, and BOD is 50mg/L, and SS is less than 30mg/L and reaches the requirement that relevant medical wastewater discharged. And the using amount of the disinfectant is small, and the problem of secondary pollution of residual chlorine can not be caused.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a hospital sewage treatment process system, includes grid well, synthesizes equalizing basin, hydrolysis-acidification pool, contact oxidation pond, sedimentation tank, disinfection pond and marshall groove and according to description order fixed connection in proper order, its characterized in that: the hydrolytic acidification pond is still connected with sludge thickening tank, sludge thickening tank's blowdown export sets up folds the spiral shell machine, sludge thickening tank still reflux connection synthesizes the equalizing basin, the sedimentation tank passes through sludge reflux pump reflux connection hydrolytic acidification pond, the grid well specifically is the thin grid of rotation and is supporting to have corresponding grid sediment screw conveyer, hydrolytic acidification pond's bottom is provided with row mud pipeline, the grid well is connected through first elevator pump and is synthesized the equalizing basin, synthesize the equalizing basin and connect hydrolytic acidification pond through the second elevator pump, the disinfection pond sets up the baschel groove.
2. The hospital sewage treatment process system according to claim 1, characterized in that: the hydrolysis acidification tank is a cylindrical tank body, the top of the hydrolysis acidification tank is provided with a cover plate (2), the top of the cover plate (2) is welded with a portal frame (1), a stirrer (8) is fixedly arranged on the portal frame (1), a reaction zone clapboard (6) is arranged inside the hydrolysis acidification tank, a water outlet bell mouth (5) is arranged on the reaction zone clapboard (6), the center of the bell mouth (5) is provided with a supernatant fluid return pipe inlet (11), the supernatant fluid return pipe inlet (11) is communicated with a return pipe outlet (10) through a supernatant fluid return pipe (9), an outlet overflow weir (3) is arranged at the opening of the hydrolysis acidification tank, the bottom of the hydrolysis acidification tank is of a mud bucket (7) structure, and a biological filler (4) is arranged below the effluent overflow weir (3), and the biological filler (4) is arranged at intervals by adopting a hollow fiber membrane and an elastic filler.
3. The hospital sewage treatment process system according to claim 2, characterized in that: the biological filler (4) is arranged by adopting a hollow fiber membrane and an elastic filler at intervals, the outer diameter of a single membrane wire of the fiber membrane is 4.0-4.4 mm, and the surface of the fiber membrane is provided with holes.
4. The hospital sewage treatment process system according to claim 3, characterized in that: the aperture of the hole is 0.1-0.2 micron, and the membrane filaments are bundled into membrane bundles every 50-100 units.
5. The hospital sewage treatment process system according to claim 4, characterized in that: the minimum outer diameter of the membrane bundle is 20 mm, the maximum outer diameter is 100 mm, and the specific surface area is 12000m2/g。
6. The hospital sewage treatment process system according to claim 1, characterized in that: an aeration unit and a filling unit are arranged in the contact oxidation tank.
7. The hospital sewage treatment process system according to claim 6, characterized in that: the aeration unit adopts a mode of combining a jet aerator and a microporous aeration disc for aeration, the angular points on the periphery of the bottom of the tank body are respectively provided with the jet aerator, and then aeration pipelines are uniformly distributed in the center of the bottom of the tank body.
8. The hospital sewage treatment process system according to claim 7, characterized in that: the distance between the axes of the pipelines is 500mm, and the distance between the axes of the aeration discs is 600 mm.
9. The hospital sewage treatment process system according to claim 1, characterized in that: the contact oxidation pond is internally provided with a biological membrane which is an ecological system consisting of highly dense aerobic bacteria, anaerobic bacteria, facultative bacteria, fungi, protozoa and algae.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921304200.0U CN211770798U (en) | 2019-08-13 | 2019-08-13 | Hospital sewage treatment process system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921304200.0U CN211770798U (en) | 2019-08-13 | 2019-08-13 | Hospital sewage treatment process system |
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| CN211770798U true CN211770798U (en) | 2020-10-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112390456A (en) * | 2019-08-13 | 2021-02-23 | 南京博知源环境科技有限公司 | Hospital sewage treatment system and method |
| CN116121021A (en) * | 2023-01-16 | 2023-05-16 | 宣汉县旭丰源家庭农场 | Preparation method of peach wine |
-
2019
- 2019-08-13 CN CN201921304200.0U patent/CN211770798U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112390456A (en) * | 2019-08-13 | 2021-02-23 | 南京博知源环境科技有限公司 | Hospital sewage treatment system and method |
| CN116121021A (en) * | 2023-01-16 | 2023-05-16 | 宣汉县旭丰源家庭农场 | Preparation method of peach wine |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Hospital Sewage Treatment Process System Granted publication date: 20201027 Pledgee: Bank of China Limited Nanjing Chengdong Branch Pledgor: NANJING BOZHIYUAN ENVIRONMENT TECHNOLOGY CO.,LTD. Registration number: Y2024980009779 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |